I Feel Fine

The second Beatles riff in the Top 50 so far, when writing about I Feel Fine critics usually devote more attention to the feedback - the first instance of its recorded use in pop - that precedes the intro riff than the riff or the song itself.

Recorded on 18 October 1964, Lennon is supposed to have penned the part under the heavy influence of Bobby Parker's Watch Your Step, a 1961 release covered by The Beatles before their rise to fame.